Download directory editing

[seapsychodonniedarko]

Is your feature request related to a problem? Please describe.
There is no way to edit the download directory when saving media, which then clutters up the Downloads folder.

Describe the solution you'd like
Either the option for the user to set a different directory OR having the default changed to Downloads/Moshidon/ (for example)

[KiruPoruno]

Were mastodon/#887 to be merged, then this would be inherently solved, as it'd make it use Download/Moshidon